Bushing puller



Jul 20 1926. 1,593,437

J. P. CHAMPAGNE BUSHING FULLER Filed Oct. 8, 1924 //7 van for Jean P [ha/27,04 0

Patented July 29, 1 926...

Urrs. srrss JEAN r. criAMPAeiiE, OF ronrLANn, OREGON.

' sustains FULLER.

Application filed'October 8, 1524.

My invention relatesto devices for the removal of bushings in automobile frames and the like wherein the bushings are to be removed for replacement or other purposes. The bushings are generally pressed in position and are tightly held and a considerable pressure is required to dislodge the same. My invention is of a portable nature easily placed in use, of simple construction, adapted to the pulling of bushings of a number of different sizes and having different sizes of mandrels and can be adapted to the pulling of small or large bushings by the interchange of mandrels.

For a complete understanding of my invention reference is had to the accompanying drawings and to the specifications relating thereto, in which- Fig. 1 is a side elevation of the assembled device shown partially in section, and in position for removing a bushing from placement.

Fig. 2 is an enlarged side elevation, also partially in section.

Fig. 3 is a fragmentary side and sectional view of the mandrel end of the device.

Fig. 4 is an end view of the power application end of my device.

Like reference characters refer to like parts throughout the several views.

1 is the frame of a vehicle having a bearing housing 2 and into which a bushing 3 has been placed by pressure or other means. 4 is the barrel of my device having an enlarged end f, and having a thrust collar 5 on the opposite end, and having a supporting handle 6 near the same for the convenience of the operator for carrying and maintaining the same in position when in use. 7 is a bearing which may be of the ball type and is intended for the reduction of operating friction. A threaded collar 8 has operatin spokes 8 attached thereto for facilitating the turning of the collar 8. A threaded shaft 9 passes through the barrel 4 and is threaded on its inner end for engagement with the mandrel 10 which has an enlarged cylindrical head 11 thereupon. The recess 12 within the enlargement P of the barrel is to permit the entrance therein of the bushing when pulled from placement. To prevent the displacement of the rod 9 from the barrel member 4 a slot 13 is out therein permitting the set screw 14 engag therein. In the event that a smaller bushing is to be pulled than Serial No. "142,379.

-.veniently pulled by the device as shown in Fig. 1 a sleeve 15 is placed within the recess 12 and a mandrel is placed within the shaft 9' with a smaller head 16 for engagement with the bushing to be pulled. To permit of the easy removal of the mandrels spanner holes 17 are made for the application of a spanner wrench or other suitable means for turning the same.

In Fig. 1 my device is shown in place and a bushing partially removed by the same being drawn within the recess by the application of power to the screw collar 8. lVhen the bushing has been completely removed from placement the screw is reversed and the bushing taken off by the removal of the mandrel from the screw shaft.

Having thus described my invention I wish to make the following claims, therefor:

l. A bushing puller, comprising a barrel having an enlarged recessed end, a thrust collar on the end opposite the recessed end, a shaft slidably disposed in said-barrel, said shaft having one end threaded, a mandrel detachably mounted on its opposite end, a cylindrical head mounted on said mandrel, a threaded collar placed at the end of the barrel opposite the recessed end, and in screw engagement with the aforementioned shaft and bearings disposed between the threaded collar and the thrust collar.

2. A bushing puller, comprising a barrel having an enlarged recessed end, a thrust collar at the'end opposite the recessed end, a supporting handle disposed on said barrel adjacent the thrust collar, a shaft slidably disposed in said barrel, said shaft having one end threaded, and a mandrel threaded in an internal thread at its opposite end, a cylindrical head mounted on said mandrel, a threaded collar having spokes for turning the same, placed at the end of the barrel opposite its recessed end, and in screw engagement with the aforementioned shaft, and bearings disposed between the threaded collar and the thrust collar.

3. A bushing puller, comprising a barrel having an enlarged recessed end. a thrust collar disposed at the end opposite the recessed end, a supporting handle disposed on said barrel'adj acent the thrust collar, a shaft disposed within said barrel and in slidable relationship therewith, and having a slot along the outer surface, the end of said shaft adjacent the thrust collar of said barrel being threaded, itsupposite end having an hi ternal thread, a mandrel threaded in said internal thread, a cylindrical head mounted on said mandrel, a. threaded collar having spokes for turning the same, placed at the end of the barrel opposite its recessed end and in screw engagement with the aforementioned shaft, bearings disposed between the threaded collar and the thrust collar, and a set screw disposed through the wall of said barrel and engaging with the before mentioned slot of said shaft.

l. A bushing puller, comprising a barrel having an enlarged recessed end, a thrust collar disposed at the end opposite the recessed end, a sleeve detachably disposed Within said recessed end, a shaft slidablv maintained Within said barrel, said shaft having one end threaded and a mandrel disposed at its opposite end in threaded relationship therewith, a cylindrical head mounted on said mandrel, a threaded collar disposed at the end of the barrel opposite its recessed end, and in threaded engagement with the aforementioned shaft, and bearings disposed between the threaded collar and the thrust collar.

JEAN P. CHAMPAGNE. 

